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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Water Mass Control on Phytoplankton Spatiotemporal Variations in the Northeastern East China Sea and the Western Tsushima Strait Revealed by Lipid Biomarkers
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Water Mass Control on Phytoplankton Spatiotemporal Variations in the Northeastern East China Sea and the Western Tsushima Strait Revealed by Lipid Biomarkers

机译：脂质生物标志物揭示东北东海和西津海峡植物植物的水分控制

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摘要

Continental margin ecosystems in the western North Pacific Ocean are subject to strong climate forcing and anthropogenic impacts. To evaluate mechanisms controlling phytoplankton biomass and community structure variations in marginal sea-open ocean boundary regions, brassicasterol, dinosterol, and C_(37) alkenones were measured in suspended particles in summer and autumn from 2012 to 2013 in the northeastern East China Sea and the western Tsushima Strait. In summer, the concentrations of brassicasterol (40-1535 ng/L) and dinosterol (4.2-94 ng/L) were higher in the southwest of Cheju Island, while C_(37) alkenones (0-30 ng/L) were higher in the south of Cheju Island. In autumn, brassicasterol (12-106 ng/L), dinosterol (2.4-21 ng/L), and C_(37) alkenones (0.7-7.0 ng/L) were higher in the southwest of Cheju Island and the western Tsushima Strait, and higher C_(37) alkenones also occurred in the Okinawa Trough. Correlation analysis of biomarkers and environmental conditions (temperature, salinity, and inorganic nutrient concentrations) clearly demonstrated that phytoplankton biomass and community structure variations can be well elucidated by water masses as indexed by temperature and salinity. High nutrients from the Changjiang River were the main cause of high biomass in summer, while nutrients from subsurface water were likely the key factor regulating phytoplankton biomass in open ocean water stations in autumn. This study indicates that mechanisms controlling phytoplankton biomass in marginal sea-open ocean boundary regions should be classified by various water masses with different nutrient concentrations, instead of by geography.
机译：西北太平洋的大陆边缘生态系统受强烈的气候迫使和人为影响。评估控制浮游植物生物质和群落结构的机制，在2012年至2012年在东北东部的夏季和秋季测量烧结粒子，铜精膏，Dinosterol和C_（37）链烯酮，在夏季和秋季测量悬浮颗粒。西部西岛海峡。在夏季，在朱州岛西南最高的晶醇（40-1535 ng / L）和Dinosterol（4.2-94 ng / L）的浓度，而C_（37）链烯酮（0-30 ng / L）较高在Cheju岛的南部。秋季，Brassicasterol（12-106 Ng / L），Dinosterol（2.4-21 ng / L）和C_（37）链烯酮（0.7-7.0 ng / L）在Cheju Island西南部较高，西部藏海南海峡，较高的C_（37）链烯酮也发生在冲绳槽中。生物标志物和环境条件的相关分析（温度，盐度和无机营养浓度）清楚地证明了浮游植物生物量和群落结构变化可以通过温度和盐度分析的水质量很好地阐明。高江河的高营养素是夏季高生物量的主要原因，而来自地下水的营养素可能是调节秋季开放海水站浮游植物的关键因素。该研究表明，控制边缘海域边界区中浮游植物生物质的机制应由各种水群，不同的营养浓度，而不是地理分类。

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  • 作者

    Rong Bi; Xi Chen; Jing Zhang; Joji Ishizaka; Yanpei Zhuang; Haiyan Jin; Hailong Zhang; Meixun Zhao;

  • 作者单位

    Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China) Ministry of Education Qingdao China;

    Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China) Ministry of Education Qingdao China;

    Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China) Ministry of Education Qingdao China;

    Institute for Space-Earth Environmental Research Nagoya University Nagoya Japan;

    Laboratory of Marine Ecosystem and Biogeochemistry Second Institute of Oceanography State Oceanic Administration Hangzhou China;

    Laboratory of Marine Ecosystem and Biogeochemistry Second Institute of Oceanography State Oceanic Administration Hangzhou China;

    Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China) Ministry of Education Qingdao China;

    Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China) Ministry of Education Qingdao China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生物分布与生物地理学;
  • 关键词

    Control; Phytoplankton; Northeastern;

    机译：控制;浮游植物;东北;

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